The 31-year-old singer dazzled as a football referee as she prepares to take centre stage at America’s biggest sporting event.

She seems to have shrugged off the controversy over her alleged non-performance at President Obama’s inauguration last week.

Wearing a pair of black leather hot pants teamed with a black and white pinstriped top, the singer is already stirring up a frenzy of anticipation for Sunday’s show.

She has added several new pictures of herself in rehearsal via her Instagram site, including shots of her lying on the ground laughing. Another photograph showed her sporting a striped jumpsuit.

Earlier that day Beyonce was looking relaxed and casual as she arrived in a rehearsals accompanied by her mother Tina Knowles wearing a navy sports top with her hair covered by a woolie hat.

There was no sign of Beyonce's husband Jay-Z or their one-year-old daughter as the star prepared for her latest rehearsal.

The singer is gearing up to perform in front of millions around the world on Sunday at the Mercedes-Benz Superdome in New Orleans.

She will follow in the footsteps of international stars such as Janet Jackson and U2 who have all performed at the hugely popular event.

The sizzling new shots comes on the back of the recent lip syncing controversy, which she will be hoping to put to bed with a strong performance at this Sunday's show.

The singer posted another snap of herself wearing a sweatshirt at the rehearsals with the words “Can I Live?” a suggested reference to her recent lip-syncing scandal,

She was accused of miming the National Anthem at President Obama's inauguration ceremony, when a spokesman for the Marine Corps Band said she opted for a pre-recorded track of the song instead of singing live.

But hours later, a Marine spokesman backed off the claim and insisted he didn't know one way or the other: “No one in the Marine Band is in a position to assess whether it was live or pre-recorded,” he said.

This year’s Super Bowl, between the American Football Conference (AFC) champion Baltimore Ravens and the National Football Conference (NFC) champion San Francisco 49ers to decide the National Football League (NFL) champion for the 2012 season, will be played at the Mercedes-Benz Superdome in New Orleans, Louisiana, on Sunday.